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Charra [1.4K]
3 years ago
10

Solve the system of equations by using the substitution method X+Y=3 X=2Y

Mathematics
1 answer:
Marrrta [24]3 years ago
6 0

Answer:

If you're asking me to solve for Y, y = 1.

Step-by-step explanation:

Simple. If x is 2x y and y = 1, 2 x 1 is 2 plus y being equal to 1 will give you a total of 3. Hope this helped.

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Use the diagram to help you solve the problem.
Harrizon [31]

Answer:

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Step-by-step explanation:

Just took it

4 0
3 years ago
Rewrite in simplest terms: 9(m-9)-4(10m+2)9(m−9)−4(10m+2)
trasher [3.6K]

The required simplified expression for 9(m - 9) - 4(10m + 2) is  -31m - 90.

Given that,
To rewrite in simplest terms: 9(m-9)-4(10m+2).


<h3>What is simplification?</h3>

The process in mathematics to operate and interpret the function to make the function simple or more understandable is called simplifying and the process is called simplification.

Question asked to simplify the term 9(m-9)-4(10m+2).

= 9(m - 9) - 4(10m + 2)
= 9m - 81 - 40m - 8
=  -31m - 90

Thus, the required simplified expression for 9(m - 9) - 4(10m + 2) is  -31m - 90.

Learn more about simplification here: brainly.com/question/12501526

#SPJ1

7 0
2 years ago
Elena wants to make a scale drawing of her bedroom. In her drawing, the length of the bedroom is 10 cm and width 6 cm. She decid
LenaWriter [7]

Answer:

I think its Length~ 25,000 cm Width~ 15,000

Step-by-step explanation:

srry if its wron but I hope this helped! :D

4 0
3 years ago
Two similar triangles have areas of 18 and 32 find the ratio of their perimeters
tia_tia [17]
\bf \qquad \qquad \textit{ratio relations}&#10;\\\\&#10;\begin{array}{ccccllll}&#10;&Sides&Area&Volume\\&#10;&-----&-----&-----\\&#10;\cfrac{\textit{similar shape}}{\textit{similar shape}}&\cfrac{s}{s}&\cfrac{s^2}{s^2}&\cfrac{s^3}{s^3}&#10;\end{array} \\\\&#10;-----------------------------\\\\&#10;\cfrac{\textit{similar shape}}{\textit{similar shape}}\qquad \cfrac{s}{s}=\cfrac{\sqrt{s^2}}{\sqrt{s^2}}=\cfrac{\sqrt[3]{s^3}}{\sqrt[3]{s^3}}\\\\&#10;-------------------------------\\\\

\bf \cfrac{smaller}{larger}\qquad \cfrac{s^2}{s^2}=\cfrac{18}{32}\implies \left( \cfrac{s}{s} \right)^2=\cfrac{18}{32}\implies \cfrac{s}{s}=\sqrt{\cfrac{18}{32}}&#10;\\\\\\&#10;\cfrac{s}{s}=\cfrac{\sqrt{18}}{\sqrt{32}}\implies \cfrac{s}{s}=\cfrac{\sqrt{9\cdot 2}}{\sqrt{16\cdot 2}}\implies \cfrac{s}{s}=\cfrac{\sqrt{3^2\cdot 2}}{\sqrt{4^2\cdot 2}}\implies \cfrac{s}{s}=\cfrac{3\sqrt{2}}{4\sqrt{2}}&#10;\\\\\\&#10;\cfrac{s}{s}=\cfrac{3}{2}
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4 years ago
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